package com.wanxi.servlet.user;

import com.alibaba.fastjson.JSONObject;
import com.wanxi.dto.ResultDTO;
import com.wanxi.model.UserModel;
import com.wanxi.service.UserService;
import com.wanxi.service.impl.UserServiceImpl;
import com.wanxi.util.Tool;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/back/user/delete")
public class UseDeleteServlet extends HttpServlet {
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//        1.乱码处理
        req.setCharacterEncoding("UTF-8");
        resp.setCharacterEncoding("UTF-8");
//        2.得到前端的值
        String id = req.getParameter("id");
//        3.封装到model
        UserModel model = UserModel.builder()
                .id(Tool.nullToInt(id))
                .build();
//        4.调用服务逻辑层
        UserService userService = new UserServiceImpl();
        ResultDTO resultDTO = userService.delete(model);
//        5.将结果返回给前端
//        以后返回给前端永远是对象：而且是json对象，所以需要将数据强制转换为json对象
//        将数据转换为json对象有很多种方式，fastjson
        resp.getWriter().println(JSONObject.toJSONString(resultDTO));
    }
}
